Question: What is the median lethal dose of ammonia for the period {1.0} ?
Paraphrase: which is the median lethal dose of ammonia for the period {1.0} ?
SPARQL (Wikidata): SELECT ?obj WHERE { wd:Q4087 p:P2240 ?s . ?s ps:P2240 ?obj . ?s pq:P2047 ?x filter(contains(?x , '1.0')) }